diff --git a/sci-physics/root/root-6.26.08.ebuild b/sci-physics/root/root-6.26.08.ebuild
index 2d2e1c21374b6..ec8f9983775c0 100644
--- a/sci-physics/root/root-6.26.08.ebuild
+++ b/sci-physics/root/root-6.26.08.ebuild
@@ -290,7 +290,7 @@ src_configure() {
 		-Dx11=$(usex X)
 		-Dxml=$(usex xml)
 		-Dxrootd=$(usex xrootd)
-		${EXTRA_ECONF}
+		"${EXTRA_ECONF}"
 	)
 
 	cmake_src_configure
diff --git a/sci-physics/root/root-6.26.9999.ebuild b/sci-physics/root/root-6.26.9999.ebuild
index 2d2e1c21374b6..ec8f9983775c0 100644
--- a/sci-physics/root/root-6.26.9999.ebuild
+++ b/sci-physics/root/root-6.26.9999.ebuild
@@ -290,7 +290,7 @@ src_configure() {
 		-Dx11=$(usex X)
 		-Dxml=$(usex xml)
 		-Dxrootd=$(usex xrootd)
-		${EXTRA_ECONF}
+		"${EXTRA_ECONF}"
 	)
 
 	cmake_src_configure
diff --git a/sci-physics/root/root-6.28.00.ebuild b/sci-physics/root/root-6.28.00.ebuild
index 84fee8efa756b..e25434a11de77 100644
--- a/sci-physics/root/root-6.28.00.ebuild
+++ b/sci-physics/root/root-6.28.00.ebuild
@@ -307,7 +307,7 @@ src_configure() {
 		-Dx11=$(usex X)
 		-Dxml=$(usex xml)
 		-Dxrootd=$(usex xrootd)
-		${EXTRA_ECONF}
+		"${EXTRA_ECONF}"
 	)
 
 	# Needs to be here, otherwise gets overriden by cmake.eclass
diff --git a/sci-physics/root/root-6.28.9999.ebuild b/sci-physics/root/root-6.28.9999.ebuild
index 84fee8efa756b..e25434a11de77 100644
--- a/sci-physics/root/root-6.28.9999.ebuild
+++ b/sci-physics/root/root-6.28.9999.ebuild
@@ -307,7 +307,7 @@ src_configure() {
 		-Dx11=$(usex X)
 		-Dxml=$(usex xml)
 		-Dxrootd=$(usex xrootd)
-		${EXTRA_ECONF}
+		"${EXTRA_ECONF}"
 	)
 
 	# Needs to be here, otherwise gets overriden by cmake.eclass
diff --git a/sci-physics/root/root-9999.ebuild b/sci-physics/root/root-9999.ebuild
index 84fee8efa756b..e25434a11de77 100644
--- a/sci-physics/root/root-9999.ebuild
+++ b/sci-physics/root/root-9999.ebuild
@@ -307,7 +307,7 @@ src_configure() {
 		-Dx11=$(usex X)
 		-Dxml=$(usex xml)
 		-Dxrootd=$(usex xrootd)
-		${EXTRA_ECONF}
+		"${EXTRA_ECONF}"
 	)
 
 	# Needs to be here, otherwise gets overriden by cmake.eclass